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With age, the human heart gradually loses its ability to repair itself following injury. Damage wrought by injuries such as cardiac ischemia and heart ....
Temple, Case Western scientists receive $3 million NIH grant to study pathway behind heart failure Like a bad water pump that fails to circulate coolant in a car engine, a failing heart struggles to pump blood through the body, causing symptoms of fatigue, shortness of breath, and swelling in the legs and feet. As heart failure progresses, the heart itself becomes increasingly unable to contract effectively, owing to changes in the molecules that control the heart, particularly a small gaseous molecule called nitric oxide. Nitric oxide is carried by red blood cells and acts as a signal to relax arteries and increase blood flow to heart tissue. It is also produced within heart cells, where it chemically combines with proteins in a process known as S-nitrosylation. More than 20,000 known S-nitrosylation events turn proteins on or off, including proteins that make up the heart s beta-adrenergic receptor (βAR) system - the system that regulates the fight-or-flight respo ....
Grant gives Temple, Case Western scientists chance to study pathway behind heart failure eurekalert.org - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from eurekalert.org Daily Mail and Mail on Sunday newspapers.
About 6.2 million Americans suffer from heart failure, an incurable disease with a staggering mortality rate - some 40 percent of patients die within five years of diagnosis. Heart failure is one form of heart disease, for which new therapies are desperately needed. ....